# -*- coding: utf-8 -*-#
#-------------------------------------------------------------------------------
# 建立者:        潘炎珍  
# Name:         demo4.22
# Description:
# Author:       98745
# Date:         2019/2/26
#-------------------------------------------------------------------------------

str='l love you'
print('you' in str)
print('hello' in str)
names=['mike','bill','john']
print('mike' in names)
print('mary' in names)